Home / 53,410.86-80,115.39-21,813.96

Finding the Fourth Proportional to 53,410.86, 80,115.39 and 21,813.96

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Solution

The fourth proportional to 53,410.86, 80,115.39 and 21,813.96 is: 32,720.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,410.86 : 80,115.39 = 21,813.96 : x
  2. Step 2: Convert to fraction form
    53,410.86/80,115.39 = 21,813.96/x
  3. Step 3: Cross multiply
    53,410.86x = 80,115.39 × 21,813.96
  4. Step 4: Simplify right side
    53,410.86x = 1,747,633,912.84
  5. Step 5: Solve for x
    x = 1,747,633,912.84/53,410.86
  6. Step 6: Final answer
    x = 32,720.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.